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DOI: 10.1055/s-2004-828674
The Natural History of Chronic Hepatitis B Virus Infection
Publikationsverlauf
Publikationsdatum:
11. Juni 2004 (online)
Three stages of chronic hepatitis B virus (HBV) infection are recognized: the immune tolerant phase, the chronic hepatitis B phase, and the inactive hepatitis B carrier phase. Active liver disease is most often found in persons with elevated aminotransferase levels and HBV DNA levels >105 copies/mL. Possible risk factors for developing liver disease include older age, male gender, presence of hepatitis B e antigen (HBeAg), HBV genotype, mutations in the precore and core promoter regions of the viral genome, and coinfection with hepatitis D (delta) virus. All persons chronically infected with HBV should be followed every 6 to 12 months with aminotransferase levels. Those with elevated levels should be tested for HBeAg and its antibody (anti-HBe) as well as HBV DNA levels to determine if they are in need of further evaluation with a liver biopsy and are candidates for antiviral therapy. Future research will help clarify the outcome of chronic HBV infection.
KEYWORDS
Hepatitis B virus - natural history - hepatocellular carcinoma
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Brian J McMahonM.D.
4055 Tudor Centre Drive
Anchorage, AK 99508-5902
eMail: bdm9@cdc.gov